I am here with news from the future to tell you what happens to Akali
Eventually people will stop picking her every time she is unbanned as they find something else new and interesting and cancer to spam, so people will move on to banning the next fotm cancerpick that literally breaks the game, not because "PEOPLE LEARNED TO PLAY AGAINST HER" but because they have to play the odds and ban the champion most likely to ruin their game.
People will then come onto these forums and complain that Akali was nerfed too hard, that her pick rate and play rate have dropped, proving that "people just need to git gud" and "now that people have learned to play against her it's perfectly fine" and "HEY RIOT SHE WAS NERFED TOO HARD PLEASE BUFF HER".
And finally, CertainlyT will sit back, relax, and sip his wine while smoking a fine cuban cigar, while dreaming up his next great champion with a true CC mechanic that passively applies untenacityable CC every third auto attack and an ultimate that causes nearby jungle creeps to become empowered and attack enemy champions while also applying the CC passive on their auto attacks and then exploding on death.
Welcome to the future. League is in good hands.